Safety locking-hook.



N0. 708,9(0. Patented Sept. 9, I902.

I A. H. NUY'ES.

SAFETY LOCKING HOOK. (Application filml May 15. 1902.|

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UNITED STATES ATENT OFFICE.

ARTHUR H. NOYES, OF BOSTON, MASSACHUSETTS.

SAFETY LOCKING-HOOK.

SPECIFICATION forming part of Letters Patent No. 708,910, datedSeptember 9, 1902. Application filed May 15,1902. Serial No. 107,513-(No model.)

To wZZ whom it may concern:

Be it known that I, ARTHUR H. N OYES, of Boston, in the county ofSuffolk and State of Massachusetts, have invented certain newandusefullmprovements in Safety Locking- Hooks, of which the followingis a specification.

This invention relates to improvements in safety locking-hooks used inconnection with a staple, screw-eye, or similar device to lock doors,shutters, blinds, and like articles in a closed position and for similarpurposes.

Theinvention has for its object to provide means whereby it will beimpossible for a person to reach through the blinds or through a crackbetween the doors or blinds with a Wire or any other implement and tounfasten my improved hook.

The invention consists of the novel constructions, arrangements, andcombinations of parts, as will be fully described hereinafter andparticularly set forth in the claims annexed hereto.

The invention is carried out substantially as illustrated on theaccompanying drawings, which form an essential part of thisspecification, and Whereon like characters of reference refer to likeparts wherever they occur on the different parts of the drawings.

. On the drawings, Figure 1 represents a perspective view of a portionof a pair of blinds provided with one form of myiniproved safetylocking-hook. Fig. 2 represents a sectional plan view of a portion of apair of blinds provided with the form of my improved safety locking-hookshown in Fig. 1. Fig. 3 represents a View similar to that shown in Fig.1, but showing my improved safety-hook with a portion of the safetylocking device shown in said Fig. 1 omitted therefrom. Figs. 4 and 5represent perspective views of two other arrangements of my improvedsafety lockinghook.

The meeting edges of the blinds a b may be formed in'any desired manner,either with the rabbets, as shown on the drawings, or with plane flatedges, as desired. On the blind a is pivotally attached the locking-hookby means of the screw c,*by a common screweye, as usual, or by any otherwel1-known equivalent means,and so that its free end can be moved towardor from the blind, as desired. This hook consists of a shank portion (1,a portion 6, projecting at substantially a right angle to said shankportion and forming the hook proper, a portion f, projecting atsubstantially a right angle to the portion 6 and to the shank portionand outward from the blind when attached to said blind. The book alsoconsists of the portion 9', which projects upward from the end of theportion f, substantially parallel to the portion'e. On the blind I) is astaple h to receive the hook. An elliptic spring 71 is secured to theblind 1), preferably above the staple h, and passes downward through thestaple. This spring is so arranged that it forces and holds the hookoutward against the outer portion of the staple with a yieldingpressure.

From the above description it will be seen that when the hook is in thestaple, and as shown in Fig. 1, the spring '1; will force and hold thehook outward against the outer portion of the staple with a yieldingpressure, that the portion f of the hook will-prevent the book frombeing withdrawn from the staple without first depressing the springsufficiently to allow the portions fand g to pass through the staple,that the portion 9 will prevent the hook from being moved backward inorder to depress the spring 2' unless the hook is pressed to its lowestposition into the staple.

In operating this myimproved safety-hook, when inserting the hook intothe staple the person forces the lower end of the hook against thespring and above the staple, thus depressing the spring until the lowerend of the hook can enter the space between the spring and the staple,or the spring may be depressed by pressing against its lower free end,if so desired. The person then releases the pressure from the hook andallows the spring to force the hook forward with the portions f and gbelow the staple, thus looking the hook within the staple.

In order to cause the spring i to be automatically depressed whenlocking the hook, I may dispense with the portion 9 and provide the hookwith the included portion j, substantially as shown in Fig. 4, whichwill act as a wedge and gradually depress the.

spring as the hook is forced downward into the staple.

In order to provide an additional means to hold the hook within thestaple I may form the spring with a ledge 70, which will rest upon thetop of the hook, as shown in Fig. 5,

and act to prevent the hook from withdrawing from the staple.

My improved hook is particularly adapted for use on blinds and shutterson buildings, but it may be used in other places when it is desired tolock a hook within a staple or screw-eye. The book may be used where itis desired to prevent a person from disconnecting the hook and staplefrom the opposite side of the door, blind, or shutter, or said hook maybe used to prevent the hook from rattling or jarring out of thestaple.

On the drawings the hook has been shown as being made from wire bentinto the desired form, and this manner of forming the same is deemedpreferable; but it will be understood that the same might be cast,

wrought, or otherwise shaped into form, if so desired.

Having thus fully described the nature, construction, and operation ofmy invention, I Wish to secure by Letters Patent and to claim 1. Apivoted hook having a projection at its free end, combined with astaple, and a spring entering said staple to lock the hook to thestaple.

2. A pivoted hook having a shank portion, a hook proper at the end ofthe shank portion, a projection at right angles to the hook proper andshank portion, and a portion parallel to the hook proper, combined witha staple, and a spring entering said staple to lock the hook to thestaple.

In testimony whereof I have afiixed my signature in presence of twowitnesses.

ARTHUR H. NOYES.

Witnesses:

HENRY CHADBOURN, 001% J. CHADBOURN.

